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Quantity: 1 - Color: Red - Material: Component - Output voltage (1.25V~26V arbitrary value) is independent of the input voltage (input 3.5V~28V arbitrary value)£¬ automatically step-up / down - LM2577S + LM2596S dual chip - Step-up mode: Input: 3.5~28V; output: 1.25V~26V - Output voltage is independent of the input voltage (input 3.5V~28V arbitrary value output 1.25V~26V any value) - Step-down mode: - Maximum current input: 3A - Maximum current output: 3A - Rated input: 1A - Rated output: 1A - Packing list: - 1 x Step-up step-down solar power supply module